Both Kage level(more so Chiyo)
Chiyo-Puppet master and medical ninja
Chiyo also had several battles with Hanzo
And her battle vs Sasori of the red sand
Tsunade-Medical ninja and super strenght
She fought Hanzo
She had fought Kabuto and had a little spar with Orochimaru
Who wins
I say Chiyo wins with low-med difficulty
Just because she actually prove to handle herself in fights and has medical ninjutsu like Tsunade
But Tsunade clearly has an edge in the medical field
But Chiyo fought 2 of the strongest people on the show
For her to fight Hanzo multiple times and survive she must be good
And it never said she lost
Chiyo-Puppet master and medical ninja
Chiyo also had several battles with Hanzo
And her battle vs Sasori of the red sand
Tsunade-Medical ninja and super strenght
She fought Hanzo
She had fought Kabuto and had a little spar with Orochimaru
Who wins
I say Chiyo wins with low-med difficulty
Just because she actually prove to handle herself in fights and has medical ninjutsu like Tsunade
But Tsunade clearly has an edge in the medical field
But Chiyo fought 2 of the strongest people on the show
For her to fight Hanzo multiple times and survive she must be good
And it never said she lost